Mahlmoodite

General Information:
 Chemical Formula:
FeZr(PO4)2·4(H2O)
 Composition:
(Molecular Weight = 317.85 gm)
Iron 17.57 % Fe
Phosphorus 19.49 % P 
Hydrogen 2.54 % H 
Oxygen 60.40 % O 
 Empirical Formula:
Fe2+PO42·4(H2O)
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
[???] Good
 Color:
cream white.
 Diaphaniety:
Transparent to Translucent
 Hardness:
3 - Calcite
 Luster:
Silky
 Streak:
white
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